It may just mean you did not get this home, because the bank, in their infinite wisdom (LOL), thought the other offer was better for the bank.

To make the calculations simpler, I'll assume the values computed above include rehab and acquisition closing costs.Rent $500 -> max price of $25,01930% down payment -> cash flow = $145, cash on cash return = 23%all cash -> cash flow = $250, cash on cash return = 12%Rent $1000 -> max price of $66,71730% down payment -> cash flow = $220, cash on cash return = 13%all cash -> cash flow = $500, cash on cash return = 9%Rent $1500 -> max price of $108,41530% down payment -> cash flow = $295, cash on cash return = 11%all cash -> cash flow = $750, cash on cash return = 8%With that 100% loan, your cash on cash return is infinite, since you have no cash in the deal.

Losses could be infinite.

In all of my infinite wisdom, I put a really nice subwoofer in a Ford Ranger I got for my 16th birthday, quit the job and went and got a better paying one with more options for 16 year olds.

We can dump infinite $ into the roofs, but it doesn't justify rent increases.

INFINITE!

However, those with good credit can have solar installed with 0 down, and where a zero down system pays for itself (taking in to account the hidden costs, risks, vacancy etc), they offer very high (infinite) ROI.  

Even in infinite alternate universes, there are very few to none where I would have invested more than $50k with this particular sponsor and I'm even at least a little hesitant to 1031 this with them since that just continues the high risk train.And that's the key.

., including equity interest charges; if it's OPM, its an INFINITE RETURN ON MY MONEY, which to me is Zero, if its not coming out of my pocket. 

It seems like an infinite loop.